Sir, you are a gifted teacher. I watch a ton of YT instructional videos on various subjects, and you are by far the best teacher out there. You speak slowly enough for novices to follow you, and you explain things clearly and completely. Thanks for your videos!
Thanks for this excellent tutorial. The best I found about the HC-SR04. Your explanations covered litteraly everything I needed to complete this project I had in mind and made my life so much easier. I especially liked the way you cover every step of the process, the inbetween sketchs to confirm the hardware runs properly (ie.DHT22), every code lines are properly detailed and explained, slow enough to understand where you going but fast enough so it's still enternaining and the viewer doesnt feel he's considered a dummy like I saw on some other channels. To sum it up I felt that was the perfect pace and detail level. Thanks again for your great work. Please keep it up !
I have to agree, your video instructions are always just excellent. (One really minor pedantic point - the abbreviation ms in your sketch is usually interpreted as millisecond, not microsecond which would be abbreviated uS). Anyway, great tutorial. I am just looking for something now which will allow me to use a couple of these as transmitter and receiver and extend the range. Thanks again.
Hands down this has to be the best tutorial regarding the Ultrasonic sensor relating to the Arduino. I have never before seen a better explained video tutorial regarding the matter.
This channel has less subscribes that the ones that should had I want to thank you because through your very detailed video tutorials you have helped me to learn more about programming your videos are very well edited, scripted and relaxing so it is all the time pleasure to re watch them .
All I can say is wow. I have been beating my head in spec. sheets and trying to put things together, lots of learning and burning. lol, Thank you for your non-judgemental casual approach.
The sensor also has a 15-degree wave sending range. If you hold the wooden board too close to the center of where the sensor is pointing, the wave also reflects off your fingers and this can also distort the results. Additionally, changing the angle at which the sensor and the board are positioned affects the results
Man, your simple yet effective demonstrations trigger the "creative juices" in the brain. I just simply started to think about the application of these sensors.... apart from the regular robo apps. I really admire you and I wish you continue this wonderful journey of enlightening. 🙏🙏🙏
A perfect profesional tutorial. Clear language, easy to understand even with other mother tongue. And No stupid background music.This motivate to try it. I could learn also a lot of your clean lab :-) Kind regards, Otto
Yes I REALLY learned my lesson about background music on my first video, and I want to assure all my subscribers (and would be subscribers) that they won't have to endure that again! I appreciate you letting me know that my explanations are understandable even when English is not your mother tongue - that's very nice to here!
Lol, I spent three quarters of the vid looking at your jittery positioning, and the box level and 2 squares behind you. Perfect vid! Seriously, clear, concise, no great insertion of hipness, direct and to the point. Oodles of kudos. Granted the jittery paws fixture illustrates accuracy depends on stability of "lock" between horns and board, but I think your sketch improvements and evolutionary gains in accuracy would be better illustrated by just blocking the board square to the meter stick face. Only critique possible, lol. Points added for Pink Floyd reference, of course. Subbed!
Yes the jittery hand probably created more inaccuracy than anything else, probably should have rigged up a clamp arrangement. Glad you appreciated the Pink Floyd reference!
DroneBot Workshop just a square face to butt upon is needed, like a machinist 123 block, though no such precision of dimension needed, of course. Hot glue a cheap plastic speed square for rigid permanence, or just a scrap of dimension lumber for free handing. Not really needed, but it minimizes a variable in results, so makes result more accurate (my inner engineer, lol). Then you could even quantify diminishment of accuracy related to obliquity, which could prove useful in finding "real world best" as opposed to "the Belle of the bench", ROFL. Yes, any reference to pre hasselhoff pop culture is appreciated, rare as it is
EXCELLENT lecture/demo!!! As an engineer that is extremely detailed, I greatly appreciate how thorough your presentation (and thinking) is. Thank you so much! :)
Well THANK YOU, coming from an engineer that is indeed a compliment. My Dad was an engineer with the space program so I have a lot of respect for engineers.
I have zero idea on how any of this works but I feel a whole step closer to understanding how to apply one of these on a separate Z axis controller for a CNC/laser. Thanks for taking the time to explain part by part.
this is the best program available with maximum accuracy that I have got on internet it has highest accuracy with up to two decimle places, Thankyou sir for providing such an effective program.
Thank you so much for all of the time and detail you put into your tutorial. I am new to Arduino and am attempting to control 2 - 24v, 200 watt power wheelchair motors via the HC-SR04 sensors. Thankfully I have spare motors and spare wheelchair, and can practice before integrating on my daughters power chair. I'm looking to reduce motor speed as proximity increases, so she hits fewer walls and obstacles. Your help is greatly appreciated and I look forward to exploring more of your tutorials hoping to understand how to connect and program. Also, looks like robust H-bridge controllers might be a problem locating....
Another fine video. You have the most comprehensive and practical instructional videos by far. It is definitely apparent that you put considerable time and effort in your productions. Thank you.
I'm presently building a basic octopod spider robot. Once assembled, it'll measure close to 1 metre in diameter, and stand approximately 20cm - 25cm high. I'm thinking of installing (2) HC-SR04 proximity sensors on my robot, one at the front, and another at the back. These will be mounted on 180 degree servos to get as large a sensor range as possible. I'd like to include AI in my robot eventually, but I am not at that level yet. I love your topics and rely on your videos and expertise for my robot applications. Your topics are great and your website is absolutely gorgeous. You're a real pro and I'd love to be able to do what you do! Thanks a lot and keep up the good work.
I find your videos very inspirational. After nearly every single one, I find myself sitting at my work table edifying my mind and honing my skills. I've learned so much from your presentations. Thank you so much and I hope you are able to continue with your efforts.
Excellent tutorial! Thank you for taking the time to cover how to use the sensors in such detail. Also, I couldn't help but notice. You have one of the cleanest and well organized workshops I have come across.
This is amazing! Thanks a lot for sharing your knowledge. As a newbie in arduino programming, I think this video is very very useful and easy to understand
Still learning all of this,.I started with code again in rehab, i'm a 49 yr old disabled American veteran. What is the best way to change motor directions after it takes a reading? Let's say turn right when an obstacle comes within 20cm. Would be a good video. I learn a lot from watching you. I took 20 years off from coding and it went crazy.
I really love this channel U helped me a lot and made me comfortable with Arduino sensors I just have 1 request can you please make a video on Bluetooth modules I really need to know about them NO OTHER CHANNEL ON RU-vid CAN EXPLAIN BETTER THAN THIS CHANNEL!! THANK YOU
Hi there. I really enjoyed your video demonstrating the HC-SR04. I plan to use an ultrasonic distance sensor to measure the water level in my rainwater tanks. I am led to believe that this will work as the sound will bounce off the water surface. I plan to send this data using MQTT to my home automation platform namely HomeAssistant. This will allow me to monitor these levels esp during summer when we use this water and during rainfall when the tanks will be topped up. Of course I need to factor in securing the board and sensor and powering it within the tank, which might be a challenge. Adding the temp / humidity sensor will not only make for extra accuracy, but so that I can see the temperatures in my tanks too. Always a nice touch. I also plan to use this sensor to measure the distance as I drive my vehicle into my garage to determine how far I can park it so that I am left with enough space between the vehicle and the wall for me to walk past into my house as well as knowing that once the car is parked, I can close the garage without having to get out and confirm visually that the car is in far enough. When I'm at the right distance, a light will turn on. Got a question though. I see that there is a HY-SRF05 ultrasonic distance sensor which seems to have replaced the HC-SR04. They are very similarly priced. Have you tested the HY-SRF05 and compared it to the HC-SR04?
Subscribed. That was a brilliant walk through, educational step-by-step but never boring, taking us right through from the very basics to improving the accuracy several times over. Awesome job :-)
took me forever to realize that the explanation kept switching between micro and milliseconds. be careful. Thank you for the absolutely fantastic video!
All I can say is WOW!! That video help me so much on a project I am building. I used the Arduino Uno and the Ultrasonic Distance Sensor with a servo to to open a door or close the door. Thanks you so muck for the video and your time.
I've only just started looking at Arduinos and how I can use them for some garden automation\logging stuff and this video is incredibly helpful. thank you
Oh yeah, I agree with Rafal Zajac, I would love to see the setup of your workshop. Especially what brands/Models some of your small storage containers are.
I have been asked about the workshop a number of times. I'll put together a video soon that shows it off, might give some other folks ideas for building a workshop of their own.
I'm really enjoying your videos. I'll have a look at your site in a minute, but while watching these videos I really wish you had a kit I could buy with all the necessary components to follow along with your videos. I'll source this stuff myself, but, if you had a store on Amazon or something that'd make the whole thing so much more convenient. Thanks for the vids! Can't wait to do some of these projects with my son!
There’s kit on Amazon. The Elegoo kits for example come with the Mega 2560 board and tons of different sensors. It includes everything you need. I just made this exact project via the kit that I bought
Hey DroneBot Workshop I just wanted to say thank you for sharing all of this good knowledge. I am doing projects on my own and I have found you great help.
Wonderfully presentation as usual. Thanks for helping some of us demystify a while loy with microcontroller, sensors and codes. God bless you real good sir. You are the best! Greetings from Nigeria
Thank you. As far as I'm concerned the metric system is really the only way to go as it's SO much easier to work with than the old imperial system. And also, they use it on Star Trek so if it's good enough for Jean Luc Picard then it's good enough for me!
Hi Sir Bill / @DroneBot Workshop, I just finished watching it and Thank You! so much for your well-explained and very detailed tutorial - I love it! Your video tutorials are very big help for those people who want to learn or pursue a career in robotics. I do appreciate your effort in making this tutorial and keep up your very good work! I am from Philippines by the way :)
As always, your lectures are very professional and informative, I have learned a lot since I subscribed to your channel. Thank you again for your expertise and knowledge of arduinos and their peripherals.
excellent tutorial, thank you! One way to get very accurate reading is to have a second sensor facing a fixed target (with a known distance) as a calibration sensor. That calibration with take in consideration temperature and humidity or any other disturbance that might appear (dust?) or even having the sensor in a medium which is not air at all... Thanks again!
Thank you for this excellent tutorial and all the others that you have provided over the years. Your explanations are very complete in both theory and application. The level of detail you provide is well beyond any others that I have reviewed for the same applications. You have a very nice lab as well. Please continue with your postings.
Just another great tutorial! Really like the way you get in depth, which is great for mid-experienced user and still keeping newbies on board! I definitely subscribed to your channel! Great job!
I'm new to Arduino, but I'm picking it up pretty fast as I have a few C++ classes under my belt from college 15 or so years ago. YOU SIR, are now my new FAVORITE tutorial guy! What is your name? I must have missed it. I look forward to watching more videos from you as I get more acquainted with Arduino. PS, I only copied one of your codes as I was getting pressed of time, but I am focusing on learning how to write the code myself so I learn to understand what I'm putting in, and only came across a couple errors. One note in this video that had me stumped, that you might consider and addendum to this one.... As well as the two Adafruit Libraries, I also had to add DHT library. It took me a while to figure out why it wasn't working after installing the Adafruits, but it finally came to me.
Your Videos are the bests I have ever seen. You explain very very well and they are very understandable. I can improve my English language too. You make your contributions very nice. Thank you very much. You asks about new ideas. a self balacing machine is a fine idea too.
Your videos are really nice. I need reference material for the formula you used in finding the speed of soundwave in the air using the temperature and humidity for the dht22 sensor. soundsp = 331.4 + (0.606 * temp) + (0.0124 * hum) -> This formula.
331.4 is the speed of sound at 0 degrees Celsius. / .606 is the average increase of resistance per degree increase. Same principle applies to the humidity calculation.
Great video. It has helped understand the HC-SR04. Again nice job! A couple of items: 1. I was confused with the initial overview of the HC-SR04, it noted the TRIG - was the Trigger pin (Input) and ECHO - was Echo pin (Output), but your sketch had them defined in reverse. So I documented my notes with sketch info. 2. Do you have a video using HC-SR04 with Arduino MEGA2560?
Hello! Your tutorials are simply awesome, equally full of information and techniques and also simple to understand, even for people like me that are not native English speakers and beginners in electronics/robotics. 🙏🙏🙏🙏 I've learned a lot from your tutorials and I appreciate the most your calmness and practical applications combined with very good theoretical approach. Congratulations!!!! And keep up the good work!! About this video, I've done all of these projects with the HC-SR04 ultra-sonic sensor and they all came very well, but I have a situation when I add the DHT11 sensor. After some readings that are going at the rhythm I wrote in the code, they go wild and run very fast, like the pace of the infinite loop! What can I do in this situation? 🤔🤔
awesome, just one thing to say: in the final demo with the hcsr04 and dht22, the serial monitor says: Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm Sound: nan m/s, Humid: nan %, Temp: nan C, Distance: nan cm please help
you are so awsome....iam starting to figure out the pulse of things....and all it took was a 555 and led.....and now the the sound speed and distance....and that ardrinuno iam afraid to destroy....lol........i recommend people listen to the whole lesson ....he was right ...everything you need to know......plus some...he has more lessons
I thought the video wit motion sensor was great! I learned that an adrino and a raspberry pi can be used for an intruder alert system. I also learned that a camera can be used to take pictures or vides with the raspberry pi This video is great educational and sets values for learning new information. I like the way you show code and examples, and wiring
Thank you for the great material! I'm the analog guy, but your videos make good introduction to the microcontroller world. Please keep it coming! Regards, Phil
I used to be an analog guy too, way back in the 70's and 80's I designed and built a lot of audio equipment. But I also got into the digital stuff very early as well. I'm happy that you find the videos useful in getting into microcontrollers.
Yeah, I'm an audio guy too (tube guitar amps, recording studio stuff, etc). Now I'm in the process of designing guitar amp function switcher (just simple 16 in's with relays latching to ground, thus switching channels in amps). All that should be controlled via midi and have 127 presets and 4 digit seven segment display to show you a status and preset number. So I've started digging microcontrollers and found your channel - I think, it's one of the best on RU-vid, imho! Thank you much!
You are a very good teacher but seeing the board moving about when testing the distance was frustrating. Use a box or something with a right angle to get stable test measurements. Thanks again for the videos.
